The MAP data on the BMW's "can" suck but as with ALL navi's, it depends on the quality of hte info the database is built off of. What I find "unforgivable" is the CRAPY "logic" of whomever created the user interface. I had thought the one on my '06 750Li could not have gotten any worse... I was VERY wrong.
On most systems you can simply enter the NAME of the location you want to go to. Nah, nah on this one